The TiLite ZR wheelchair can generally be categorized as an ultra-light wheelchair due to its exceptionally light weight (less than 20 pounds depending upon configuration). TiLite—the manufacturer of this product—specifies this wheelchair as follows.
The TiLite ZR exhibits a full weld frame. The full weld ZR can be stiffer and lighter than an otherwise comparable ZRA. The ZR model is generally considered by people who know exactly what their optimim wheelchair specifications are. The ZR is not adjustable like its ZRA couterpart. Note that during fabrication the ZR's front frame tubes can be made parallel (as seen here), or tapered as seen in the TiLite ZRA picture.
To order or get more details for this wheelchair, call Wheelchair Cushion Sage. You can also download and complete the order form found on the manufacturer's (TiLite's) website. Note that your total price - here - will be lower than what is seen on the TiLite order form. When you complete your desired ZR specifications (i.e., the order form), you will receive a quotation from Wheelchair Cushion Sage. The ZR's frame features can be customized when ordered, but be aware that ZR front and rear seat heights, the frame's back angle, and center of gravity are not adjustable after the chair has been manufactured.